. Author manuscript; available in PMC: 2014 May 1.

Published in final edited form as: J Rheumatol. 2013 Feb 15;40(5):605–610. doi: 10.3899/jrheum.120941

Table 1.

Characteristics of 77 patients with rheumatoid arthritis (RA) and 154 patients without RA at onset of myocardial infarction (MI)

Characteristic	MI patients with RA (N = 77)	MI patients without RA (N = 154)	P value
Age, years, mean ± SD	72.4 ± 12.2	72.4 ± 12.2	1.0
Women, n (%)	42 (55%)	84 (55%)	1.0
Medical history, n (%)
Hypertension	55 (71%)	99 (63%)	0.26
Dyslipidemia	31 (40%)	62 (40%)	0.91
Diabetes mellitus	21 (27%)	41 (26%)	0.92
Current smoking	9 (12%)	32 (21%)	0.06
Obesity (Body mass index ≥ 30 kg/m²)	26 (33%)	45 (29%)	0.48
Revascularization procedures	21 (27%)	41 (27%)	0.91
Cerebrovascular disease	18 (23%)	33 (21%)	0.73
Peripheral vascular disease	16 (21%)	39 (25%)	0.45
MI characteristics & severity, n (%)
Killip class II-IV	28 (36%)	55 (35%)	0.92
Electrocardiogram, n (%)
Anterior MI	25 (32%)	50 (32%)	0.92
ST-segment elevation MI	16 (21%)	43 (28%)	0.24
Presence of Q waves	34 (44%)	68 (44%)	0.96